Apparently Trump plans to start down this road as early as his presidential campaign announcement (expected, in the powerful wake of his Red Wave, any day now), where a PowerPoint of parallel Melania/Casey photos will accompany his remarks.
Aides have been attempting to convey to Trump that sometimes things that work in one political cycle might fail to work in others; and that while sexualizing your wife for votes might have worked well when Melania was, er, younger, it is unlikely to work against the still-nubile and spectacularly beautiful Casey DeSantis, who can also write and deliver her own speeches in English, does not need to lie about having graduated from college, etc. etc. etc.
So far the only response Trump has given advisors has been to triple down on his plan. He will contrast images of Casey DeSantis with all three of his wives – Ivana, Marla, and Melania.
“Mr President, Ivana will remind people of your age, since she got old enough to die. Marla will remind them that you traded Ivana in for a younger model. Please do not do this.”